Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders

The paper discusses various ways of activating phosphorus slags by introducing additives for the development of phosphorus slag binders (PSB), replacing cement. Considering that pseudowollastonite is the main mineral of phosphorus slags and without activating components does not possess the binding...

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Autores principales:	Ultuar Mahambetova, Zatkali Estemesov, Bulbul Nuranbayeva, Pernekhan Sadykov, Orken Mamyrbayev, Dina Oralbekova
Formato:	article
Lenguaje:	EN RU UK
Publicado:	PC Technology Center 2021
Materias:	phosphorus slag cement sodium hydroxide phosphorus slag binders construction materials Technology (General) T1-995 Industry HD2321-4730.9
Acceso en línea:	https://doaj.org/article/1d39d02ddb454d96b465821e8ac026a1
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spelling	oai:doaj.org-article:1d39d02ddb454d96b465821e8ac026a12021-11-04T14:09:04ZDevelopment and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders1729-37741729-406110.15587/1729-4061.2021.242814https://doaj.org/article/1d39d02ddb454d96b465821e8ac026a12021-10-01T00:00:00Zhttp://journals.uran.ua/eejet/article/view/242814https://doaj.org/toc/1729-3774https://doaj.org/toc/1729-4061The paper discusses various ways of activating phosphorus slags by introducing additives for the development of phosphorus slag binders (PSB), replacing cement. Considering that pseudowollastonite is the main mineral of phosphorus slags and without activating components does not possess the binding properties necessary for the production of building materials based on them, we used compositions of small amounts of sodium hydroxide with alkali metal salts, the anions of which form poorly soluble compounds with calcium. When choosing activating components, scarce alkaline additives were replaced by waste from chemical plants, which allows a passing solution of their practical use and environmental problems. The strength at a sodium hydroxide content of 1–4 % after curing of slag samples of various batches was in the range of 50.0–70.0 MPa. Samples of binders of normal hardening at the age of 28 days with a sodium hydroxide content of 0.5; 1.0, 2 and 4 % had the strength of 20.3; 35.4; 45.6; 55.8 MPa, respectively. The effect of the combined presence of alkali and salt is especially noticeable for small amounts of sodium hydroxide. Binders containing a composition of cement with salts under normal conditions and after curing showed a slightly lower strength than in an alkaline medium. With a constant cement content (4 %), the strength indicators increase with an increase in the proportion of the salt additive, reaching at 4 % its maximum value. The effect of the nature of activators on pH was determined. The data obtained indicate the advantages of using PSB and various industrial wastes with a low content of alkaline compounds in the productionUltuar MahambetovaZatkali EstemesovBulbul NuranbayevaPernekhan SadykovOrken MamyrbayevDina OralbekovaPC Technology Centerarticlephosphorus slagcementsodium hydroxidephosphorus slag bindersconstruction materialsTechnology (General)T1-995IndustryHD2321-4730.9ENRUUKEastern-European Journal of Enterprise Technologies, Vol 5, Iss 6 (113), Pp 54-61 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	phosphorus slag cement sodium hydroxide phosphorus slag binders construction materials Technology (General) T1-995 Industry HD2321-4730.9
spellingShingle	phosphorus slag cement sodium hydroxide phosphorus slag binders construction materials Technology (General) T1-995 Industry HD2321-4730.9 Ultuar Mahambetova Zatkali Estemesov Bulbul Nuranbayeva Pernekhan Sadykov Orken Mamyrbayev Dina Oralbekova Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders
description	The paper discusses various ways of activating phosphorus slags by introducing additives for the development of phosphorus slag binders (PSB), replacing cement. Considering that pseudowollastonite is the main mineral of phosphorus slags and without activating components does not possess the binding properties necessary for the production of building materials based on them, we used compositions of small amounts of sodium hydroxide with alkali metal salts, the anions of which form poorly soluble compounds with calcium. When choosing activating components, scarce alkaline additives were replaced by waste from chemical plants, which allows a passing solution of their practical use and environmental problems. The strength at a sodium hydroxide content of 1–4 % after curing of slag samples of various batches was in the range of 50.0–70.0 MPa. Samples of binders of normal hardening at the age of 28 days with a sodium hydroxide content of 0.5; 1.0, 2 and 4 % had the strength of 20.3; 35.4; 45.6; 55.8 MPa, respectively. The effect of the combined presence of alkali and salt is especially noticeable for small amounts of sodium hydroxide. Binders containing a composition of cement with salts under normal conditions and after curing showed a slightly lower strength than in an alkaline medium. With a constant cement content (4 %), the strength indicators increase with an increase in the proportion of the salt additive, reaching at 4 % its maximum value. The effect of the nature of activators on pH was determined. The data obtained indicate the advantages of using PSB and various industrial wastes with a low content of alkaline compounds in the production
format	article
author	Ultuar Mahambetova Zatkali Estemesov Bulbul Nuranbayeva Pernekhan Sadykov Orken Mamyrbayev Dina Oralbekova
author_facet	Ultuar Mahambetova Zatkali Estemesov Bulbul Nuranbayeva Pernekhan Sadykov Orken Mamyrbayev Dina Oralbekova
author_sort	Ultuar Mahambetova
title	Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders
title_short	Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders
title_full	Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders
title_fullStr	Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders
title_full_unstemmed	Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders
title_sort	development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders
publisher	PC Technology Center
publishDate	2021
url	https://doaj.org/article/1d39d02ddb454d96b465821e8ac026a1
work_keys_str_mv	AT ultuarmahambetova developmentandresearchoftheinfluenceofthecompositionandconcentrationofactivatorsonthestrengthofphosphorusslagbinders AT zatkaliestemesov developmentandresearchoftheinfluenceofthecompositionandconcentrationofactivatorsonthestrengthofphosphorusslagbinders AT bulbulnuranbayeva developmentandresearchoftheinfluenceofthecompositionandconcentrationofactivatorsonthestrengthofphosphorusslagbinders AT pernekhansadykov developmentandresearchoftheinfluenceofthecompositionandconcentrationofactivatorsonthestrengthofphosphorusslagbinders AT orkenmamyrbayev developmentandresearchoftheinfluenceofthecompositionandconcentrationofactivatorsonthestrengthofphosphorusslagbinders AT dinaoralbekova developmentandresearchoftheinfluenceofthecompositionandconcentrationofactivatorsonthestrengthofphosphorusslagbinders
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Development and research of the influence of the composition and concentration of activators on the strength of phosphorus slag binders

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